Researchers at the National Research Council Canada – Institute for Research in Construction (NRC-IRC) conducted a study to determine how far, how fast and over what period lighting can be dimmed before occupants notice and are adversely affected. The results suggest a role for dimmable lighting in demand response programs.
WearGuard-Crest, a division of ARAMARK, set an ambitious goal: to replace all the lighting fixtures throughout 280,000 square feet of office, manufacturing, and retail space at its headquarters in Norwell, Massachusetts, just south of Boston. Furthermore, the company wanted the project to pay for itself in energy savings. J&R Wiring, Inc., took up the challenge. After researching the most advanced lighting control systems on the market today, J&R Wiring identified the one technology with the most powerful return on investment (ROI)—DCL® (Demand Control Lighting) from Universal Lighting Technologies.
Glenn D. Hughes, president of Glenn D. Hughes Consulting Associates and the director of construction for The New York Times Company during the design, installation, and commissioning of the new 52-story New York Times Building, last year made news with his announcement that the Quantum total light management system in the building was achieving a 70 percent lighting energy savings.
A breakthrough light management system from Lutron® Electronics Co., Inc., recently installed in a new, landmark Manhattan office tower, is achieving a “stunning” 70 percent energy savings compared to the ambitious energy-efficiency benchmark the building was designed to meet.
Lutron Electronics Co., Inc. introduces the next generation of the Quantum™ total light management system for improved comfort and productivity and the capability to reduce a building’s lighting electricity usage by 60 percent or more.
Principals and associates at The Lighting Practice, a design firm based in Philadelphia, Pennsylvania, have long advocated sustainable design, and have recently had the opportunity to take their own advice. While planning a move that was completed in June 2007, they designed tenant improvements incorporating energy saving lighting controls that exceeded code requirements and let them demonstrate best practices to customers.
Associate Principal Julie Panassow and Lighting Designer Pomme Suchato were responsible for lighting the new space, and they selected a lighting control panel, occupancy sensors and daylighting controls from Watt Stopper/Legrand to achieve their goals. They succeeded in reducing the firm’s demand for energy, and set a green example for clients.
What are the benefits of combining advanced lighting control strategies in the same space? Are the energy-saving benefits of lighting controls persistent over time? Can advanced lighting controls be successfully applied to open offices given concerns about jurisdiction conflicts, lighting uniformity, etc.? Can they enhance worker satisfaction? A new office lighting field study addresses these questions. Involving about 90 workers in a real-world open-office environment, the one-year study determined that occupancy sensing, daylight harvesting and individual occupant dimming control worked together in the building to produce average energy savings of 47% while correlating with higher occupant environmental and job satisfaction. The study demonstrates that sophisticated lighting control strategies can be combined successfully to generate persistent, large energy savings in open-plan offices while improving occupant satisfaction with their jobs and workspace.
As part of its mission to promote energy efficiency and innovation for the benefit of its customers, the New York Power Authority (NYPA) gives special emphasis to demonstrating new energy-saving technologies. Along these lines, NYPA installed AddressPro® Digital Dimming—an advanced lighting-control technology—from Universal Lighting in several areas of its main administrative office building in White Plains. This was done as part of the wide-ranging measures NYPA has undertaken in recent years to augment the seventeen-story building’s energy efficiency for lowering electric bills and reducing carbon emissions.
Vermont-based manufacturer NRG Systems in 2005 built a new headquarters carefully crafted to reflect the company’s commitment to the environment, the community and its employees. The 46,550 square foot facility, which includes office, manufacturing and warehouse space for company-produced wind monitoring equipment, was designed to minimize environmental impacts and maximize energy conservation.
The first design goal was to find ways to minimize energy needs in all areas of building operation, including heating, cooling and lighting. The second goal was to provide as much energy from renewable sources as possible. Company owners were willing to make an upfront investment to ensure significant long-term savings.
Naomi Miller of Naomi Miller Lighting Design specified the electric lighting and Andy Shapiro of Energy Balance, Inc. developed the facility’s daylighting plan. The two designers collaborated with Watt Stopper/Legrand to select energy saving controls that would meet the ambitious criteria of the project.
A number of studies demonstrate that personal dimming can result in higher productivity—specifically in the metrics of vigilance, motivation and satisfaction—and also in energy savings. This dual impact can result in an improved bottom line and more satisfied employees and tenants. These advantages are resulting in a significant new trend towards adoption of personal dimming solutions among designers and building owners.
This white paper makes the case for personal control, in particular giving occupants the ability to control their own light levels through dimming.